Greatest Common Factor of 70, 85, 21, 439

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 70, 85, 21, 439 by common division method
• Greatest Common Factor of 70, 85, 21, 439 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 439

List of positive integer factors of 439 that divides 439 without a remainder.

1,439

Greatest Common Factor

We found the factors 70,85,21,439 . The biggest common factor number is the GCF number.
So the greatest common factor 70,85,21,439 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 53, 49, 11, 991
• GCF of 22, 53, 86, 723
• GCF of 52, 47, 59, 637
• GCF of 41, 41, 74, 394
• GCF of 32, 39, 46, 954

1. What is the GCF of 70, 85, 21, 439?

Answer: GCF of 70, 85, 21, 439 is 1.

2. How to Find the GCF of 70, 85, 21, 439

Answer: Greatest Common Factor(GCF) of 70, 85, 21, 439 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(70, 85, 21, 439) = 1.